200MW汽轮机高压缸静叶的精铸工艺  

Investment Casting Technology forStatic Blade of High Pressure Cylinder of 200 MW Turbine

作　　者：高亚龙[1] 孙勤[1] 

机构地区：[1]哈尔滨汽轮机有限责任公司

出　　处：《特种铸造及有色合金》1999年第2期30-32,共3页Special Casting & Nonferrous Alloys

摘　　要：通过合理设计模具结构，选择适宜加工手段，为这种三维空间造型、并附叶冠的叶片，制作出了方便、适用、尺寸精度极高的模具；通过适宜的热加工手段，有效地控制了变形，并设制了适宜的加工、抛磨、装配的处理过程，保证了整圈出口面积偏差在±１％范围内，使电厂装机效果超过了设计目标。The convenient,suitable and high precision die was made,by means of properly designing die structure and pertinently selecting machining methods,for the blade with shroud in three dimensional moulding.Using proper hot working methods,the deformation was controled.The appropriate processes were designed for machining,polishing,and assembling.It was ensured that the tolorances of the whole circular outlet area ranged less than 1%, so that the assembly effect in power plant was better than that of the expected goal.

关 键 词：静叶片 精铸 CAD CAM 汽轮机 高压缸 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]